Adjustable stop attachment for height gauges



w. :E i 1 s W. V. TEDRICK ADJUSTABLE STOP ATTACHMENT FOR HEIGHT GAUGESFiled F'eb. 26, 1945 Aug. 22, 1950 F IG. 3

INVEN'ToR. wn.|.|AM v. Teomcx ATTORNY Patented Aug. 22, 1950 UNITEDSTATES OFFICE.

ADJUSTABLE STO? ATTACHIWENT FR HEEGH' GAUGES William V. 'lledri ir,Reynoidsburg, Ghia, assigner to @urnes-Wright Corporation, a corncraticnof Delaware Claims.

rlhis invention is directed to measuring instruments and particularly toimprovements in connection with height gauges.

It is a principal object of this invention to provide an improvedmeasuring instrument which shall be useful as a layout tool forduplicating one or more measurements quickly and accurately on a seriesof duplicate objects or parts. i It is also an important object toprovide means which, when used in connection with height gaugesgenerally, will materially increase the versatility and utility of suchgauges.

A further object resides in the arrangement of adjustable stop means anda carrier for the stop means such that the same may be attached to orremoved from the measuring instrument without impairing or requiring anychanges or modifications thereof.

These and other objects will be noted during the course of the detaileddescription of a preferred embodiment of the invention as the same isillustrated in the drawing, in which:

Figure l is an elevational assembly View of the measuring instrumentshowing the features of the invention in connection with a bracketstructure requiring the determination of drill hole reference axes,

Figure 2 is a perspective View of the instrument illustrating a furtherstage of its application over the showing of Figure 1,

Figure 3 is an enlarged top plan View of a clamping element orattachment device taken at line 3 3 of Figure 2, and

Figure 4 is an enlarged but fragmentary view of a second clamping devicewhich is used in cooperation with the device of Figure 3, the View beingtaken at line @-4 in Figure 2.

The present invention is illustrated in the accompanying drawing ascomprising a height gauge and means for attachment to the gauge wherebythe same may be made more versatile and useful. The gauge includes abase plate or pedestal member lil, an upright scale member II suitablyiixed in the base plate, a Vernier type measurement determining slidepiece I2 and an adjusting slide piece i3 which is operatively connectedto the Vernier slide through a threaded adjustment screw shaft ifi, thelatter being moved in a longitudinal direction by means or a knurled nutI5 xcd in the adjusting slide I3 as shown. The Vernier slide piece isformed with a projecting arm I6 to which a pointer element Il issuitably clamped by element It and set screw I9. The arm i6 is adaptedto move along a path which is in the plane of the scale member.

ri'he Vernier slider is provided with at least one side opening and abeveled scale surface il upon which is scribed the Vernier scale orindicia. rihe upright scale member i i is also provided with scaleindicia along at least one of its :dat 5159s such that the Vernier scalewill be in registry therewith and both scale indicia will be visiblethrough the opening in the usual manner` Thus the slides i2 and i3 aremoved together along the scale member 5I until a iiret or rough locationof the pointer il is reached, Thereafter, a set screw 22 will serve,when tightened against the adjacent edge of member i i, to adjust-- mentslide and permit ne adjustment ci the Vernier slide i2 through thethreaded shaft Iii. A second set screw 23 on Vernier slide I2 will serveto fix the latter in the final position desired.

In order that one or more positions of the vernier slide may berelocated quickly and without requiring the use or" the adjustment slideand screw shaft M, there is provided a series of stop elements 25, eachoi which is movable into or away from the path movement of arm l. Whenlocated across the path of arm it it will be possible to return theVernier slide into its original position, provided the stop element hasbeen set for that condition.

Each of the stop elements 2li is mounted in an adjustable clamp means orsiide block 26 and the latter is carried on a guide post or member 2l.-The clamp means is formed with an aperture to receive the guide post anda split end such that a screw element 23 passing through the split ends(Figure e) will draw the same together and effect a clamping action onthe post. The clamp blocks may be slid alenay the post 2l to anylocation desired and secured in place. Thereafter the stop element 25can be projected into the path of travel of arm it on the Vernier sliderI2 and the latter arrested at the location desired.

The stop means is mounted to the instrument in such a position that theguide post or member 21 is parallel to and set to one side of the planeof the scale member II. This positionment is` maintained by a headbracket 3Q which receives the post Z'I in an offset arm 3|. The bracketis secured to the scale member by means of split clamping iingers 32 and33 and a clamp screw 3ft. A foot bracket 35 is formed with a similaroffset arm 36 to position the guide post 27 in parallel and in offsetrelation with respect to scale member II. The foot bracket is alsosuitably formed to t the base plate and to engage the scale memberbetween clamping fingers 3l and 38, these clamping iingers being securedby a clamp screw 39.

The details of the head bracket 3U are clearly indicated in Figure 3while the foot bracket construction should be evident upon reference toFigures l, 2 and 4. rEhe stop means are each substantially identical andtherefore the plan View details of one thereof has been disclosed inFigure 4. It should be noted that the stop element 25 is provided withan integral flanged head and a removable flanged head so that itsassemblyy canV be effected easily and simply.

As an example of its use the present invention has been shown incondition for determining the reference axes of a pair of apertureswhich are to be drilled in the anged plate of a bracket structure 40.The bracket is nrst carefully positioned on a jig block lll of suitabletype and placed upon a Working surface or datum plane 42. Dowel pins maybe utilized to locate the bracket structure upontlie-block- 4l in themanner shownln Figures 1 and: 2.v A rst bracket or template is usedto'the instrument for therequired measurementsv so that the stop means maybe spaced along the post 215 at the desired locations. In Figure 1-' theupper' pair of stop means have been located toY reproduce the pointerposition corresponding to the horizontal reference axes scribed onthebracket' structure at A and B. In Figurev 2. the lower' pair of stopmeansA have been located to correspond to the horizontal reference axesC and D'sc'rib'edlon the bracket structure after the latter has' beenrearranged on the datum plane in the manner shown.

For each subsequent bracket structure requiring identical measurementsto locate the'required axes from which drillings are determined, allthatv is necessary is to slide the Vernier or measurement determiningmember iZ- and its adjustm'entV slide S13 along the scale until thedesired stop element 25 can be projected into the understood that thescope of the invention is-` tof be limited only by the claims*rhereafter' appearin'g and' that' the* foregoing description isi givenin` an instructive and not in a limiting sense.

What is claimed is:

I.V An attachment for a height gage having a baise, anlupright-calibrated scale supported bythe base and a scale slide membermounted onr the scale for movement therealong to any selected height.said' attachment comprising a bar, clamping means at the ends of the`bar for detachably connecting it to the height gage adjacent tlieendportions of the scale' for supporting the bar in parallel relation tothe scale and spaced laterally from the path of movement of the scaleslide member along the scale, a plurality of slide elements mounted onthe bar for independent sliding movement therealong, each such slideelement having clamping means for releasably'securing it to the bar atany selected' height along the bar, andv a stop pin slidably mounted oneach' slide element, eachV such stoppin being slidable axially on theYrelated slide element in a horizontal direction into and out of the pathof vertical movement oi the scale slide member along the' scale.

2. An attachment for a height gage having a base, an upright calibratedscale supported by the base and a scale slide member mounted on thescale for movement therealong to any selected height, said attachmentcomprising a bar, clamping means at the ends of the bar fordetachably'connecting it tofthe height gage adjacent the end portions ofthe scalefor supporting the bar in parallel relation to the scale andspaced laterally from the path of movement of the scale slide memberalong the scale, a slide element mounted on the bar for sliding movementtherealong, said slide element having clamping means for releasablysecuring it to the bar at any selected height along'the bar, and a stoppin slidably mounted on th'e'slide element, said stop pin beingslidable' axiallyon the slide element in a horizontal direction into andout of the path of verti'c'al movement of the scale slide member alongthe scale.

An a-ttachm'entfo'r' a height gage: having a base; an upright.calibrated' scale supported' by the base and a scale slidemember'mou'nted on, the' scale for' movement therealimgY to any selectedheight, said attachment comprising a bar, clampingmeansf at the endsof'the bar for detachably connecting it to theheight gage adfjacentthe endlportions oi the' scale' for supporting' the bar in parallel rela-tionto' the' scale andi spaced laterally from the pathof movement of thescale slide member along the; scale, a plurality off slideclementsmounted? on* the bar' for independent sliding4 movement tlierealong,each such slidey element' having; means for' releasably' securing it' tof thebarat anyselectedl height along the bar, and

a stop carried by each slideelement, e ch such stopbeing movablelaterally onthe related' slide element into and out of the path ofmovement of' the scale'slide member along the scale.

in An attachment for a height gage having a base, an upright calibratedscale supported by the base and a scale slide member mounted: on the'scalefor movement therealong toY any selected; he'ght said attachmentcomprising a bar, clamping means' at the ends of the' bar fordetac'l'iably' connecting it to the'height gage adjacent the endportions of the scale for supporting the bar in parallel relation" toAthe scale and spaced laterally' from the path of movement of the scaleslide member along the scale; a slide element mounted' onthe` bar forsliding movement therealong, said' slide element having means' forreleasably securing, it to the bar atv any selected y. h'e'ight along'the bar, and; a; stop carried by the slide element', said stop beingmovable laterally onY the slide element' into and out of the path o1'movement of the scale sli'de member' along the' scale.

5. Adjustable'l stop means for a height gage having a base, an uprightcalibrated scale supported by the base and a scale slide member mountedon the scale for movement therealong. to; any selected height, saidadjustable stop means comprising a bar, laterally extending arms attheendsof the bar connecting. ittoi the: height gage adjacent theendportions of the: scale-,. said armssupporting: they bar in' parallel.relation tol the scale and spacedlaterally from the path of movement ofthe scale: slide member along the scaler a: slide element. mounted. on:the bar for' slidingV movement therealon'g, said slide element. havingmeans'. for releasably'securing it to the bali at. any selected heightalong the bar, and asto'px carried by the slide element, said stop beingmovable laterally on the slide element into and out of the path ofmovement of the scale slide member along the scale. l

6. Adjustable stop means for a height gage having a base, an uprightcalibrated scale supported by the base and a scale slide member mountedon the scale for movement therealong to any selected height, saidadjustable stop means comprising a bar, laterally extending arms at theends of the bar connecting it to the height gage adjacent the endportions of the scale, said arms supporting the bar in parallel relationto the scale and spaced laterally from the path of movement of the scaleslide member along the scale, a slide member mounted on the bar forsliding movement therealong, the last-mentioned slide member havingmeans for releasably securing it to the bar at any selected height alongthe bar, and a stop carried by one of said slide members, said stopbeing movable laterally on the' slide 6 member which carries it into andout of the path of vertical movement of the other slide member.

WILLIAM V. TEDRICK.

